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* Copyright (c) 2019, Nordic Semiconductor
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* 1. Redistributions of source code must retain the above copyright notice, this
*    list of conditions and the following disclaimer.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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import Foundation


internal enum LowerTransportPduType: UInt8 {
    case accessMessage  = 0
    case controlMessage = 1
}

internal protocol LowerTransportPdu {
    /// Source Address.
    var source: Address { get }
    /// Destination Address.
    var destination: Address { get }
    /// The Network Key used to decode/encode the PDU.
    var networkKey: NetworkKey { get }
    /// The IV Index used to decode/encode the PDU.
    var ivIndex: UInt32 { get }
    /// Message type.
    var type: LowerTransportPduType { get }
    /// The raw data of Lower Transport Layer PDU.
    var transportPdu: Data { get }
    /// The raw data of Upper Transport Layer PDU.
    var upperTransportPdu: Data { get }
}

extension LowerTransportPduType: CustomDebugStringConvertible {
    
    var debugDescription: String {
        switch self {
        case .accessMessage:  return "Access Message"
        case .controlMessage: return "Control Message"
        }
    }
    
}
